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james |
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REM > RandWalk |
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ON ERROR ON ERROR OFF: OSCLI"ScreenSave RandImage": REPORT: PRINT "("+STR$ERL+")": END |
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MODE MODE |
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OFF |
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s% = 2 |
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x% = 400 |
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y% = 300 |
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b% = &FF |
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g% = &FF |
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r% = &FF |
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REPEAT |
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REM ColourTrans_SetGCOL (3-351) |
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SYS &40743, (b% << 24) + (g% << 16) + (r% << 8) |
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CIRCLE FILL x% * 2, y% * 2, 4 |
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CASE RND(8) OF |
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WHEN 1: y% += s% |
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WHEN 2: x% += s%: y% += s% |
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WHEN 3: x% += s% |
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WHEN 4: x% += s%: y% -= s% |
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WHEN 5: y% -= s% |
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WHEN 6: x% -= s%: y% -= s% |
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WHEN 7: x% -= s% |
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WHEN 8: x% -= s%: y% += s% |
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ENDCASE |
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IF x% < 0 THEN x% = 800 |
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IF y% < 0 THEN y% = 600 |
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IF x% > 800 THEN x% = 0 |
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IF y% > 600 THEN y% = 0 |
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IF RND(2) = 1 THEN c% = 4 ELSE c% = -4 |
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CASE RND(3) OF |
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WHEN 1: b% += c% |
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WHEN 2: g% += c% |
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WHEN 3: r% += c% |
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ENDCASE |
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IF b% < 0 THEN b% = 0 |
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IF g% < 0 THEN g% = 0 |
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IF r% < 0 THEN r% = 0 |
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IF b% > &FF THEN b% = &FF |
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IF g% > &FF THEN g% = &FF |
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IF r% > &FF THEN r% = &FF |
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UNTIL 0 |
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