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| − | [[AGI Tutorials|Tutorials Table of Contents]]<br />
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| − | [[AGI Command Reference|AGI Command Reference Index]]<br />
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| − | <div align="center">
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| − | Page:
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| − | [[AGI Command Reference - Arithmetic Commands|1]] |
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| − | [[AGI Command Reference - Commands to Load and unLoad Resources|2]] |
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| − | [[AGI Command Reference - Program Control Commands|3]] |
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| − | [[AGI Command Reference - Object Control Commands|4]] |
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| − | [[AGI Command Reference - Object Description Commands|5]] |
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| − | [[AGI Command Reference - Object Motion Control Commands|6]] |
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| − | [[AGI Command Reference - Inventory Item Management Commands|7]] |
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| − | [[AGI Command Reference - Picture Resource Management Commands|8]] |
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| − | [[AGI Command Reference - Sound Resource Management Commands|9]] |
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| − | [[AGI Command Reference - Text Management Commands|10]] |
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| − | [[AGI Command Reference - String Management Commands|11]] |
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| − | [[AGI Command Reference - Initialization Commands|12]] |
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| − | [[AGI Command Reference - Menu Management Commands|13]] |
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| − | [[AGI Command Reference - Test Commands|14]] |
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| − | [[AGI Command Reference - Other Commands|15]] |
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| − | [[AGI Command Reference - Unknown Commands|16]]
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| − | </div><br />
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| − |
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| − | <div align="center"><span style="font-size: 22pt">Arithmetic Commands</span><br />
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| − | ''By [[Chris Cromer]]''</div>
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| − | Commands that operate on variables.
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| − | === <br />increment(n); ===
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| − |
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| − | <blockquote>The value of the variable Var(n) is incremented by one.
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n)+1. If the value is already 255, it is left unchanged.</blockquote>
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| − |
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| − | === decrement(n); ===
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| − |
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| − | <blockquote>The value of the variable Var(n) is decremented by one.
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n)-1. If the value is 0, it is left unchanged.</blockquote>
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| − |
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| − | === assign(n, m); ===
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| − | <blockquote>Variable Var(n) is assigned the value m.
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| − |
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| − | '''Examples:'''<br />Var(n) = m</blockquote>
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| − |
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| − | === assignv(n, m); ===
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| − |
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| − | <blockquote>Variable Var(n) is assigned the value of Var(m).
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(m).</blockquote>
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| − |
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| − | === addn(n, m); ===
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| − |
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| − | <blockquote>The value of variable Var(n) is incremented by m.
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n) + m.</blockquote>
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| − |
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| − | === addv(n, m); ===
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| − |
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| − | <blockquote>The value of variable Var(n) is incremented by the value of Var(m).
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n) + m.
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| − |
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| − | '''Notes:'''<br />
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| − | Now what happens in the above two commands on 8-bit overflow: does the result wrap over 0 or stays 255? i.e. is 250 + 10 == 4 or 250 + 10 == 255?]</blockquote>
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| − |
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| − | === subn(n, m); ===
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| − |
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| − | <blockquote>The value of Var(n) is decremented by m.
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n) - m</blockquote>
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| − |
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| − | === subv(n, m); ===
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| − |
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| − | <blockquote>The value of Var(n) is decremented by Var(m).
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n) - Var(m).
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| − |
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| − | '''Notes:'''<br />
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| − | Again, what happens when the result must be negative: is 1 - 2 == 255 or 1 - 2 == 0?</blockquote>
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| − |
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| − | === lindirectn(n, m); ===
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| − |
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| − | <blockquote>Variable Var(i) where i is the value of Var(n) is assigned a value m.
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| − |
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| − | '''Examples:'''<br />
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| − | Var(Var(n)) = m.</blockquote>
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| − |
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| − | === lindirectv(n, m); ===
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| − |
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| − | <blockquote>Variable Var(i) where i is the value of Var(n) is assigned the value of Var(m).
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| − |
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| − | '''Examples:'''<br />
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| − | Var(Var(n)) = Var(m).</blockquote>
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| − |
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| − | === rindirect(n, m); ===
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| − |
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| − | <blockquote>Variable Var(n) is assigned the value of Var(i) where i is the value of Var(m).
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(Var(m)).</blockquote>
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| − | === muln(n, m); ===
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| − | <blockquote>Variable Var(n) is multiplied by m.
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n) * m.</blockquote>
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| − |
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| − | === mulv(n, m); ===
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| − |
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| − | <blockquote>Variable Var(n) is multiplied by the value of Var(m).
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n) * Var(m).<br />
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| − |
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| − | '''Notes:'''<br />
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| − | What happens on overflow?</blockquote>
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| − |
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| − | === divn(n, m) ===
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| − | <blockquote>Variable Var(n) is divided by m.
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n) / m.</blockquote>
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| − |
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| − | === divv(n, m) ===
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| − |
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| − | <blockquote>Variable Var(n) is divided by the value of Var(m).
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| − |
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| − | '''Examples:'''<br />
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| − | Var(n) = Var(n) / Var(m).
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| − |
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| − | '''Notes:'''<br />
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| − | What happens on division by 0?</blockquote>
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| − | === random(n, m, k) ===
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| − |
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| − | <blockquote>Variable Var(k) is assigned a random value in the range between n and m. Now let us consider the commands changing flag values.
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| − | '''Notes:'''<br />
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| − | Remember that a flag can only have a value 0 or 1.</blockquote>
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| − | === set(n) ===
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| − |
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| − | <blockquote>flag(n) is set to 1.</blockquote>
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| − |
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| − | === set.v(n) ===
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| − |
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| − | <blockquote>flag(i), where i is the value of var (n), is set to 1.
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| − |
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| − | '''Examples:'''<br />
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| − | flag(var(n)) = 1.</blockquote>
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| − |
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| − | === reset(n) ===
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| − | <blockquote>flag(n) is set to 0.
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| − |
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| − | === reset.v(n) ===
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| − |
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| − | <blockquote>flag(i), where i is the value of var (n), is set to 0.<br />
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| − | <br />
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| − | '''Examples:'''<br />
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| − | flag(var(n)) = 0.</blockquote>
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| − |
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| − | === toggle(n) ===
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| − | <blockquote>flag(n) toggles its value.</blockquote>
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| − | === toggle.v(n) ===
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| − | <blockquote>flag(i), where i is the value of var (n)
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| − |
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| − | '''Examples:'''<br />
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| − | flag(var(n)), toggles is value.</blockquote>
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| − |
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| − |
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| − |
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| − | <div align="center">
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| − | Page:
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| − | [[AGI Command Reference - Arithmetic Commands|1]] |
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| − | [[AGI Command Reference - Commands to Load and unLoad Resources|2]] |
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| − | [[AGI Command Reference - Program Control Commands|3]] |
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| − | [[AGI Command Reference - Object Control Commands|4]] |
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| − | [[AGI Command Reference - Object Description Commands|5]] |
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| − | [[AGI Command Reference - Object Motion Control Commands|6]] |
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| − | [[AGI Command Reference - Inventory Item Management Commands|7]] |
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| − | [[AGI Command Reference - Picture Resource Management Commands|8]] |
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| − | [[AGI Command Reference - Sound Resource Management Commands|9]] |
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| − | [[AGI Command Reference - Text Management Commands|10]] |
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| − | [[AGI Command Reference - String Management Commands|11]] |
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| − | [[AGI Command Reference - Initialization Commands|12]] |
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| − | [[AGI Command Reference - Menu Management Commands|13]] |
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| − | [[AGI Command Reference - Test Commands|14]] |
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| − | [[AGI Command Reference - Other Commands|15]] |
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| − | [[AGI Command Reference - Unknown Commands|16]]
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| − | </div>
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| − |
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| − |
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| − |
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| − | [[AGI Tutorials|Tutorials Table of Contents]]<br />
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| − | [[AGI Command Reference|AGI Command Reference Index]]
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| − |
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| − | <span style="float: left">[[AGI Command Reference|< Previous: Index]]</span><span style="float: right">[[AGI Command Reference - Commands to Load and unLoad Resources|Next: Commands to Load and unLoad Resources >]]</span>
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| − |
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| − |
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| − |
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| − | [[Category:Commands]]
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| − | [[Category:References]]
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| − | [[Category:Tutorials]]
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| − | [[Category:Arithmetic Operators]]
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